Near Field Moving Detector Goniophotometer

The LSG-1900B Near Field Moving Detector Goniophotometer is a Type C automated goniophotometric instrument engineered for precise luminous intensity distribution measurement in accordance with international photometric standards. This system incorporates a temperature-stabilized detector to ensure measurement stability and repeatability across extended testing periods.

Primary Applications: Industrial laboratory photometric characterization of compact luminaires including downlights, bulb lights, LED modules, and other small-scale lighting products requiring detailed spatial light distribution analysis.

Measurement Capabilities: The LSG-1900B performs comprehensive photometric analysis including:
• Luminous Intensity Distribution Curves
• Zonal Luminous Flux Calculations
• Luminaire Efficacy Determination
• Luminance Distribution Mapping
• Coefficient of Utilization Analysis
• Glare Evaluation via Luminance Limitation Curves
• Maximum Distance-to-Height Ratio Assessment
• Equal Illuminance Diagram Generation
• Luminaire-to-Lighting Area Correlation Curves
• Isocandela Diagram Production
• Effective Luminescence Angle Measurement

Technical Specifications:
• Standards Compliance: Meets requirements of CIE S 025, IEC 60598-1, IES LM-79, and GB/T 9468
• Measurement Modes: Supports both C-γ and B-β coordinate system measurements
• Burn Position Stability: Maintains fixed burning point position throughout rotation cycles
• Rotation Capability: Luminaire rotates through γ-axis ±180° (0-360°) and C-axis ±180° (0-360°)
• Maximum Test Sample: Φ300mm diameter × 550mm height; 20kg maximum weight; 10A current capacity
• Measurement Geometry: 1250mm fixed distance between luminaire and detector
• Photometric Range: Light intensity measurement from 0.015cd to 10⁷cd
• Angular Precision: 0.2° accuracy with 0.01° resolution
• Photometric Accuracy: Class A per international standards
• Software Compatibility: English interface compatible with Windows 7, 8, 10, and 11 operating systems
• Data Export Formats: Generates CIE, IES, LDT, and other standard photometric data files compatible with illumination design software including Dialux

Tags: LSG-1900B, Near Field Moving Detector Goniophotometer Brochure